package com.supermap.tool;

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;
/**
 * 
* @ClassName: SpringUtil 
* @Description: Spring工具类 获取bean
* @author yuyao
* @date 2017年12月28日 下午5:56:15
 */
@Component
public class SpringUtil implements ApplicationContextAware{

	  private static ApplicationContext applicationContext = null;
	  
	    @Override
	    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
	       if(SpringUtil.applicationContext == null){
	           SpringUtil.applicationContext  = applicationContext;
	       }
	    }

	    //获取applicationContext
	    public static ApplicationContext getApplicationContext() {
	       return applicationContext;
	    }

	    //通过name获取 Bean.
	    public static Object getBean(String name){
	       return getApplicationContext().getBean(name);
	    }

	    //通过class获取Bean.
	    public static <T> T getBean(Class<T> clazz){
	       return getApplicationContext().getBean(clazz);

	    }

	    //通过name,以及Clazz返回指定的Bean
	    public static <T> T getBean(String name,Class<T> clazz){
	       return getApplicationContext().getBean(name, clazz);

	    }
}
